Nanochick can probably explain what all of this stuff is. For the rest of us its just a freak out video...

This is a really exceptionally well done video. These processes shown really are the processes going on within a cell. What this video is depicting (for those that don't know) is an immune response. It shows white blood cells at the beginning drifting along in a bloodstream, and then goes on to show a cells inner processes in signalling to the immune system that there is an issue. Its really beautiful:) I can provide more details for those that are interested.